Vulnerability · Published Mar 26, 2026 · Assigned by GitHub_M

CVE-2026-33477FileRise has incorrect authorization in /api/file/snippet.php allows read_own users to read other users’ file content

Medium 4.3

In plain English

A medium-severity incorrect authorization in FileRise from error311. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.2%top 85.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. In versiosn 2.3.7 through 3.10.0, the file snippet endpoint `/api/file/snippet.php` allows an authenticated user with only `read_own` access to a folder to retrieve snippet content from files uploaded by other users in the same folder. This is a server-side authorization flaw in the `read_own` enforcement for hover previews. Version 3.11.0 fixes the issue.

Affected products (as reported)

Vendor	Product	Versions
error311	FileRise	>= 2.3.7, < 3.11.0

Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

https://github.com/error311/FileRise/security/advisories/GHSA-62wx-vp78-2p83 x_refsource_CONFIRM
https://github.com/error311/FileRise/releases/tag/v3.11.0 x_refsource_MISC